Struct sqlx_core::postgres::PgConnection[−][src]

pub struct PgConnection { /* fields omitted */ }
Expand description

A connection to a PostgreSQL database.

Trait Implementations

impl<'c> Acquire<'c> for &'c mut PgConnection[src]

type Database = Postgres

type Connection = &'c mut <Postgres as Database>::Connection

fn acquire(self) -> BoxFuture<'c, Result<Self::Connection, Error>>[src]

fn begin(self) -> BoxFuture<'c, Result<Transaction<'c, Postgres>, Error>>[src]

impl Connection for PgConnection[src]

type Database = Postgres

type Options = PgConnectOptions

fn close(self) -> BoxFuture<'static, Result<(), Error>>[src]

Explicitly close this database connection. Read more

fn ping(&mut self) -> BoxFuture<'_, Result<(), Error>>[src]

Checks if a connection to the database is still valid.

fn begin(
    &mut self
) -> BoxFuture<'_, Result<Transaction<'_, Self::Database>, Error>> where
    Self: Sized, [src]

Begin a new transaction or establish a savepoint within the active transaction. Read more

fn cached_statements_size(&self) -> usize[src]

The number of statements currently cached in the connection.

fn clear_cached_statements(&mut self) -> BoxFuture<'_, Result<(), Error>>[src]

Removes all statements from the cache, closing them on the server if needed. Read more

fn transaction<'a, F, R, E>(
    &'a mut self,
    callback: F
) -> BoxFuture<'a, Result<R, E>> where
    F: FnOnce(&'c mut Transaction<'_, Self::Database>) -> BoxFuture<'c, Result<R, E>> + 'a + Send + Sync,
    Self: Sized,
    R: Send,
    E: From<Error> + Send, [src]

Execute the function inside a transaction. Read more

fn connect(url: &str) -> BoxFuture<'static, Result<Self, Error>> where
    Self: Sized, [src]

Establish a new database connection. Read more

fn connect_with(options: &Self::Options) -> BoxFuture<'_, Result<Self, Error>> where
    Self: Sized, [src]

Establish a new database connection with the provided options.

impl Debug for PgConnection[src]

fn fmt(&self, f: &mut Formatter<'_>) -> Result[src]

Formats the value using the given formatter. Read more

impl<'c> Executor<'c> for &'c mut PgConnection[src]

type Database = Postgres

fn fetch_many<'e, 'q: 'e, E: 'q>(
    self,
    query: E
) -> BoxStream<'e, Result<Either<PgQueryResult, PgRow>, Error>> where
    'c: 'e,
    E: Execute<'q, Self::Database>, [src]

Execute multiple queries and return the generated results as a stream from each query, in a stream. Read more

fn fetch_optional<'e, 'q: 'e, E: 'q>(
    self,
    query: E
) -> BoxFuture<'e, Result<Option<PgRow>, Error>> where
    'c: 'e,
    E: Execute<'q, Self::Database>, [src]

Execute the query and returns at most one row.

fn prepare_with<'e, 'q: 'e>(
    self,
    sql: &'q str,
    parameters: &'e [PgTypeInfo]
) -> BoxFuture<'e, Result<PgStatement<'q>, Error>> where
    'c: 'e, [src]

Prepare the SQL query, with parameter type information, to inspect the type information about its parameters and results. Read more

fn describe<'e, 'q: 'e>(
    self,
    sql: &'q str
) -> BoxFuture<'e, Result<Describe<Self::Database>, Error>> where
    'c: 'e, [src]

fn execute<'e, 'q: 'e, E: 'q>(
    self,
    query: E
) -> BoxFuture<'e, Result<<Self::Database as Database>::QueryResult, Error>> where
    'c: 'e,
    E: Execute<'q, Self::Database>, [src]

Execute the query and return the total number of rows affected.

fn execute_many<'e, 'q: 'e, E: 'q>(
    self,
    query: E
) -> BoxStream<'e, Result<<Self::Database as Database>::QueryResult, Error>> where
    'c: 'e,
    E: Execute<'q, Self::Database>, [src]

Execute multiple queries and return the rows affected from each query, in a stream.

fn fetch<'e, 'q: 'e, E: 'q>(
    self,
    query: E
) -> BoxStream<'e, Result<<Self::Database as Database>::Row, Error>> where
    'c: 'e,
    E: Execute<'q, Self::Database>, [src]

Execute the query and return the generated results as a stream.

fn fetch_all<'e, 'q: 'e, E: 'q>(
    self,
    query: E
) -> BoxFuture<'e, Result<Vec<<Self::Database as Database>::Row>, Error>> where
    'c: 'e,
    E: Execute<'q, Self::Database>, [src]

Execute the query and return all the generated results, collected into a Vec.

fn fetch_one<'e, 'q: 'e, E: 'q>(
    self,
    query: E
) -> BoxFuture<'e, Result<<Self::Database as Database>::Row, Error>> where
    'c: 'e,
    E: Execute<'q, Self::Database>, [src]

Execute the query and returns exactly one row.

fn prepare<'e, 'q: 'e>(
    self,
    query: &'q str
) -> BoxFuture<'e, Result<<Self::Database as HasStatement<'q>>::Statement, Error>> where
    'c: 'e, [src]

Prepare the SQL query to inspect the type information of its parameters and results. Read more

impl Migrate for PgConnection[src]

fn ensure_migrations_table(&mut self) -> BoxFuture<'_, Result<(), MigrateError>>[src]

fn version(
    &mut self
) -> BoxFuture<'_, Result<Option<(i64, bool)>, MigrateError>>[src]

👎 Deprecated

fn dirty_version(&mut self) -> BoxFuture<'_, Result<Option<i64>, MigrateError>>[src]

fn list_applied_migrations(
    &mut self
) -> BoxFuture<'_, Result<Vec<AppliedMigration>, MigrateError>>[src]

fn lock(&mut self) -> BoxFuture<'_, Result<(), MigrateError>>[src]

fn unlock(&mut self) -> BoxFuture<'_, Result<(), MigrateError>>[src]

fn validate<'e: 'm, 'm>(
    &'e mut self,
    migration: &'m Migration
) -> BoxFuture<'m, Result<(), MigrateError>>[src]

👎 Deprecated

fn apply<'e: 'm, 'm>(
    &'e mut self,
    migration: &'m Migration
) -> BoxFuture<'m, Result<Duration, MigrateError>>[src]

fn revert<'e: 'm, 'm>(
    &'e mut self,
    migration: &'m Migration
) -> BoxFuture<'m, Result<Duration, MigrateError>>[src]

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

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impl<T> Conv for T

fn conv<T>(self) -> T where
    Self: Into<T>, 

Converts self into T using Into<T>. Read more

impl<T> Conv for T

fn conv<T>(self) -> T where
    Self: Into<T>, 

Converts self into a target type. Read more

impl<T> FmtForward for T

fn fmt_binary(self) -> FmtBinary<Self> where
    Self: Binary, 

Causes self to use its Binary implementation when Debug-formatted.

fn fmt_display(self) -> FmtDisplay<Self> where
    Self: Display, 

Causes self to use its Display implementation when Debug-formatted. Read more

fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
    Self: LowerExp, 

Causes self to use its LowerExp implementation when Debug-formatted. Read more

fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
    Self: LowerHex, 

Causes self to use its LowerHex implementation when Debug-formatted. Read more

fn fmt_octal(self) -> FmtOctal<Self> where
    Self: Octal, 

Causes self to use its Octal implementation when Debug-formatted.

fn fmt_pointer(self) -> FmtPointer<Self> where
    Self: Pointer, 

Causes self to use its Pointer implementation when Debug-formatted. Read more

fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
    Self: UpperExp, 

Causes self to use its UpperExp implementation when Debug-formatted. Read more

fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
    Self: UpperHex, 

Causes self to use its UpperHex implementation when Debug-formatted. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> Pipe for T where
    T: ?Sized, 

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R

Pipes by value. This is generally the method you want to use. Read more

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
    R: 'a, 

Borrows self and passes that borrow into the pipe function. Read more

fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
    R: 'a, 

Mutably borrows self and passes that borrow into the pipe function. Read more

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    Self: Borrow<B>,
    R: 'a,
    B: 'a + ?Sized, 

Borrows self, then passes self.borrow() into the pipe function. Read more

fn pipe_borrow_mut<'a, B, R>(
    &'a mut self,
    func: impl FnOnce(&'a mut B) -> R
) -> R where
    Self: BorrowMut<B>,
    R: 'a,
    B: 'a + ?Sized, 

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more

fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R where
    Self: AsRef<U>,
    R: 'a,
    U: 'a + ?Sized, 

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    Self: AsMut<U>,
    R: 'a,
    U: 'a + ?Sized, 

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fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
    Self: Deref<Target = T>,
    T: 'a + ?Sized,
    R: 'a, 

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fn pipe_deref_mut<'a, T, R>(
    &'a mut self,
    func: impl FnOnce(&'a mut T) -> R
) -> R where
    Self: DerefMut<Target = T> + Deref,
    T: 'a + ?Sized,
    R: 'a, 

Mutably borrows self, then passes self.deref_mut() into the pipe function. Read more

impl<T> Pipe for T

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R

Pipes a value into a function that cannot ordinarily be called in suffix position. Read more

impl<T> PipeAsRef for T

fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
    Self: AsRef<T>,
    T: 'a,
    R: 'a, 

Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more

fn pipe_as_mut<'a, T, R>(&'a mut self, func: impl FnOnce(&'a mut T) -> R) -> R where
    Self: AsMut<T>,
    T: 'a,
    R: 'a, 

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impl<T> PipeBorrow for T

fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
    Self: Borrow<T>,
    T: 'a,
    R: 'a, 

Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more

fn pipe_borrow_mut<'a, T, R>(
    &'a mut self,
    func: impl FnOnce(&'a mut T) -> R
) -> R where
    Self: BorrowMut<T>,
    T: 'a,
    R: 'a, 

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impl<T> PipeDeref for T

fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
    Self: Deref,
    R: 'a, 

Pipes a dereference into a function that cannot normally be called in suffix position. Read more

fn pipe_deref_mut<'a, R>(
    &'a mut self,
    func: impl FnOnce(&'a mut Self::Target) -> R
) -> R where
    Self: DerefMut,
    R: 'a, 

Pipes a mutable dereference into a function that cannot normally be called in suffix position. Read more

impl<T> PipeRef for T

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
    R: 'a, 

Pipes a reference into a function that cannot ordinarily be called in suffix position. Read more

fn pipe_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
    R: 'a, 

Pipes a mutable reference into a function that cannot ordinarily be called in suffix position. Read more

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> Tap for T

fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more

fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more

fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
    Self: Borrow<B>,
    B: ?Sized, 

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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self where
    Self: BorrowMut<B>,
    B: ?Sized, 

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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self where
    Self: AsRef<R>,
    R: ?Sized, 

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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self where
    Self: AsMut<R>,
    R: ?Sized, 

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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self where
    Self: Deref<Target = T>,
    T: ?Sized, 

Immutable access to the Deref::Target of a value. Read more

fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self where
    Self: DerefMut<Target = T> + Deref,
    T: ?Sized, 

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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.

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Calls .tap_mut() only in debug builds, and is erased in release builds. Read more

fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self where
    Self: Borrow<B>,
    B: ?Sized, 

Calls .tap_borrow() only in debug builds, and is erased in release builds. Read more

fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self where
    Self: BorrowMut<B>,
    B: ?Sized, 

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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self where
    Self: AsRef<R>,
    R: ?Sized, 

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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
    Self: AsMut<R>,
    R: ?Sized, 

Calls .tap_ref_mut() only in debug builds, and is erased in release builds. Read more

fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self where
    Self: Deref<Target = T>,
    T: ?Sized, 

Calls .tap_deref() only in debug builds, and is erased in release builds. Read more

fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self where
    Self: DerefMut<Target = T> + Deref,
    T: ?Sized, 

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fn tap<F, R>(self, func: F) -> Self where
    F: FnOnce(&Self) -> R, 

Provides immutable access for inspection. Read more

fn tap_dbg<F, R>(self, func: F) -> Self where
    F: FnOnce(&Self) -> R, 

Calls tap in debug builds, and does nothing in release builds.

fn tap_mut<F, R>(self, func: F) -> Self where
    F: FnOnce(&mut Self) -> R, 

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fn tap_mut_dbg<F, R>(self, func: F) -> Self where
    F: FnOnce(&mut Self) -> R, 

Calls tap_mut in debug builds, and does nothing in release builds.

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    U: ?Sized, 

fn tap_ref<F, R>(self, func: F) -> Self where
    Self: AsRef<T>,
    F: FnOnce(&T) -> R, 

Provides immutable access to the reference for inspection.

fn tap_ref_dbg<F, R>(self, func: F) -> Self where
    Self: AsRef<T>,
    F: FnOnce(&T) -> R, 

Calls tap_ref in debug builds, and does nothing in release builds.

fn tap_ref_mut<F, R>(self, func: F) -> Self where
    Self: AsMut<T>,
    F: FnOnce(&mut T) -> R, 

Provides mutable access to the reference for modification.

fn tap_ref_mut_dbg<F, R>(self, func: F) -> Self where
    Self: AsMut<T>,
    F: FnOnce(&mut T) -> R, 

Calls tap_ref_mut in debug builds, and does nothing in release builds.

impl<T, U> TapBorrow<U> for T where
    U: ?Sized, 

fn tap_borrow<F, R>(self, func: F) -> Self where
    Self: Borrow<T>,
    F: FnOnce(&T) -> R, 

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fn tap_borrow_dbg<F, R>(self, func: F) -> Self where
    Self: Borrow<T>,
    F: FnOnce(&T) -> R, 

Calls tap_borrow in debug builds, and does nothing in release builds.

fn tap_borrow_mut<F, R>(self, func: F) -> Self where
    Self: BorrowMut<T>,
    F: FnOnce(&mut T) -> R, 

Provides mutable access to the borrow for modification.

fn tap_borrow_mut_dbg<F, R>(self, func: F) -> Self where
    Self: BorrowMut<T>,
    F: FnOnce(&mut T) -> R, 

Calls tap_borrow_mut in debug builds, and does nothing in release builds. Read more

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fn tap_deref<F, R>(self, func: F) -> Self where
    Self: Deref,
    F: FnOnce(&Self::Target) -> R, 

Immutably dereferences self for inspection.

fn tap_deref_dbg<F, R>(self, func: F) -> Self where
    Self: Deref,
    F: FnOnce(&Self::Target) -> R, 

Calls tap_deref in debug builds, and does nothing in release builds.

fn tap_deref_mut<F, R>(self, func: F) -> Self where
    Self: DerefMut,
    F: FnOnce(&mut Self::Target) -> R, 

Mutably dereferences self for modification.

fn tap_deref_mut_dbg<F, R>(self, func: F) -> Self where
    Self: DerefMut,
    F: FnOnce(&mut Self::Target) -> R, 

Calls tap_deref_mut in debug builds, and does nothing in release builds. Read more

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fn try_conv<T>(self) -> Result<T, Self::Error> where
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fn try_conv<T>(self) -> Result<T, Self::Error> where
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impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>, 

pub fn vzip(self) -> V